chore: Remove debug code and improve SPDX license meta data

Close #1918 with removing some forgotten debug code.
Add some more SDPX license data.

CONTRIBUTING.md

@@ -163,6 +163,7 @@ the packages provided by the official repository of your GNU/Linux distribution.
     - `flake8`
     - `ruff` (>= 0.6.0)
     - `codespell`
+    - `reuse` (>= 4.0.0)
 
 * Dependencies to build documentation
   - All runtime, build, testing dependencies including the recommended

common/backintime.desktop

@@ -1,8 +1,17 @@
+# SPDX-FileCopyrightText: © 2009 Back In Time team
+#
+# SPDX-License-Identifier: CC0-1.0
+#
+# This file is released under Creative Commons Zero 1.0 (CC0-1.0) and part of
+# the program "Back In Time". The program as a whole is released under GNU
+# General Public License v2 or any later version (GPL-2.0-or-later).
+# See LICENSES directory or go to <https://spdx.org/licenses/CC0-1.0.html>
+# and <https://spdx.org/licenses/GPL-2.0-or-later.html>.
 [Desktop Entry]
 Version=1.0
 Name=Backintime Password Cache
 Exec=/bin/sh -c "backintime pw-cache start 2>&1 >/dev/null"
-Comment=Cache passwords for non-interactive Backintime cronjobs
+Comment=Cache passwords for non-interactive Back In Time cronjobs
 Icon=gtk-save
 SingleMainWindow=true
 Terminal=false

common/bash-completion/backintime

@@ -1,3 +1,11 @@
+# SPDX-FileCopyrightText: © 2015 Germar Reitze
+#
+# SPDX-License-Identifier: GPL-2.0-or-later
+#
+# This file is part of the program "Back In time" which is released under GNU
+# General Public License v2 (GPLv2). See file/folder LICENSE or go to
+# <https://spdx.org/licenses/GPL-2.0-or-later.html>.
+
 # extract profile and config arguments
 _bit_extr_opts()
 {

doc/ENCRYPT_TRANSITION.md

@@ -1,3 +1,13 @@
+<!--
+SPDX-FileCopyrightText: © 2024 Back In Time Team
+
+SPDX-License-Identifier: GPL-2.0-or-later
+
+This file is part of the program "Back In Time" which is released under GNU
+General Public License v2 (GPLv2). See LICENSES directory or go to
+<https://spdx.org/licenses/GPL-2.0-or-later.html>
+-->
+
 # Transition of the encryption feature in _Back In Time_
 <sub>July 2024</sub>
 

doc/maintain/1_doc_howto.md

@@ -1,5 +1,5 @@
 <!--
-SPDX-FileCopyrightText: 2024 Christian Buhtz <[email protected]>
+SPDX-FileCopyrightText: © 2024 Christian Buhtz <[email protected]>
 
 SPDX-License-Identifier: GPL-2.0-or-later
 

doc/maintain/2_localization.md

@@ -1,3 +1,12 @@
+<!--
+SPDX-FileCopyrightText: 2024 Christian Buhtz <[email protected]>
+
+SPDX-License-Identifier: GPL-2.0-or-later
+
+This file is part of the program "Back In Time" which is released under GNU
+General Public License v2 (GPLv2). See file/folder LICENSE or go to
+<https://spdx.org/licenses/GPL-2.0-or-later.html>
+-->
 # Translation and localization (l10n) of Back In Time using Weblate
 <sub>Feel free to [open issues](https://github.com/bit-team/backintime/issues) or contact the [maintenance team on the mailing list](https://mail.python.org/mailman3/lists/bit-dev.python.org/) if this text is difficult to understand or not helpful.</sub>
 

doc/maintain/3_How_to_set_up_openssh_server_for_ssh_unit_tests.md

@@ -1,3 +1,12 @@
+<!--
+SPDX-FileCopyrightText: © 2023 Jürgen Altfeld (aryoda)
+
+SPDX-License-Identifier: GPL-2.0-or-later
+
+This file is part of the program "Back In Time" which is released under GNU
+General Public License v2 (GPLv2). See file/folder LICENSE or go to
+<https://spdx.org/licenses/GPL-2.0-or-later.html>
+-->
 # How to set up a local `openssh-server` to enable ssh unit tests
 <!-- TOC start (generated with https://github.com/derlin/bitdowntoc) -->
 - [Motivation](#motivation)

doc/maintain/4_Control_files_usage_(locks_flocks_logs_and_others).md

@@ -1,3 +1,12 @@
+<!--
+SPDX-FileCopyrightText: © 2023 Jürgen Altfeld (aryoda)
+
+SPDX-License-Identifier: GPL-2.0-or-later
+
+This file is part of the program "Back In Time" which is released under GNU
+General Public License v2 (GPLv2). See file/folder LICENSE or go to
+<https://spdx.org/licenses/GPL-2.0-or-later.html>
+-->
 # Usage of control files in _Back In Time_ (developer documentation)
 
 Table of contents:

qt/app.py

@@ -588,12 +588,14 @@ def _create_actions(self):
                 _('Restore the selected files or directories to a '
                   'new destination.')),
             'act_restore_parent': (
-                icon.RESTORE, 'RESTORE PARENT (DEBUG)',
+                icon.RESTORE,
+                None,  # text label is set elsewhere
                 self.restoreParent, None,
                 _('Restore the currently shown directory and all its contents '
                   'to the original destination.')),
             'act_restore_parent_to': (
-                icon.RESTORE_TO, 'RESTORE PARENT TO (DEBUG)',
+                icon.RESTORE_TO,
+                None,  # text label is set elsewhere
                 self.restoreParentTo, None,
                 _('Restore the currently shown directory and all its contents '
                   'to a new destination.')),